JPH0250U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る工作機械の刃物割だし盤
の一実施例の側面図、第２図は第１図における右
側面図、第３図は刃物割だし盤のハウジング内の
構成を示す断面図、第４図は第３図中に示すター
レツトの部分斜視図、第５図は第３図中のＶ―Ｖ
線矢視断面図、第６図はテーパリブの展開図、第
７図はカムフオロワーに加わるラジアル荷重と半
径方向への変位との関係を示すグラフ、第８図〜
第１０図は第１変形実施例を示すものでそれぞれ
第３図中の要部と第５図及び第６図に相当する図
、第１１図〜第１２図は第２変形実施例を示すも
のでそれぞれ第４図と第６図とに相当する図であ
る。 ８……刃物割だし盤、２２……ハウジング、２
４……入力軸、２６……出力軸、３０……回転盤
、３２……刃物、３６……グロボイダルカム、３
８……テーパリブ、３８ａ，３８ｂ……テープリ
ブの両側壁面、４０……カムフオロワー、４２…
…ターレツト、４４……支持部、４４ａ，４４ｂ
……支持部の両側壁面、４６……凹部、ｓ……隙
間。 Fig. 1 is a side view of an embodiment of a tool indexing machine for a machine tool according to the present invention, Fig. 2 is a right side view of Fig. 1, and Fig. 3 shows the configuration inside the housing of the tool indexing machine. 4 is a partial perspective view of the turret shown in FIG. 3, and FIG. 5 is a cross-sectional view of the turret shown in FIG. 3.
6 is a developed view of the taper rib, FIG. 7 is a graph showing the relationship between the radial load applied to the cam follower and displacement in the radial direction, and FIGS.
Fig. 10 shows the first modified embodiment and corresponds to the main parts in Fig. 3 and Figs. 5 and 6, respectively, and Figs. 11 to 12 show the second modified embodiment. These figures correspond to FIG. 4 and FIG. 6, respectively. 8...Knife splitter, 22...Housing, 2
4...Input shaft, 26...Output shaft, 30...Rotary disk, 32...Cutter, 36...Globoidal cam, 3
8...Taper rib, 38a, 38b...Both side wall surfaces of tape rib, 40...Cam follower, 42...
...Turret, 44...Support part, 44a, 44b
...Both side wall surfaces of the support portion, 46...Recess, s...Gap.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 工作機械の基台上に前後及び左右方向に水平移
動自在に設けられたハウジングと、このハウジン
グに回転自在に軸支された入力軸と、この入力軸
に一体的に取付けられたグロボイダルカムと、こ
のグロボイダルカムのテーパリブに係合されるカ
ムフオロワーと、このカムフオロワーが所定の間
隔をあけて放射状に複数設けられたターレツトと
、このターレツトが一体的に取付けられて前記ハ
ウジングに回転自在に軸支された出力軸と、この
出力軸の軸端に取付けられた回転盤と、この回転
盤の周縁部に保持された複数の刃物とを有し、加
工時に所定の刃物をワーク加工位置に位置ぎめし
て固定する工作機械の刃物割だし盤において、前
記カムフオロワーを固定する前記ターレツトの各
支持部を径方向の外方に突出させて該各支持部間
に前記テーパリブの先端部を挿通させる凹部を形
成し、前記支持部の両側壁面と前記テーパリブの
両側壁面との間には、前記カムフオロワーとテー
パリブとの相互間に作用する荷重によつてカムフ
オロワーに変形が生じたときに該変形の弾性変形
域内で前記支持部の側壁面とテーパリブの側壁面
とが当接する微小な隙間を設けたことを特徴とす
る工作機械の刃物割だし盤。 A housing is provided on the base of a machine tool so as to be horizontally movable in the front and back and left and right directions, an input shaft is rotatably supported by this housing, a globoidal cam is integrally attached to this input shaft, and this A cam follower engaged with a tapered rib of a globoidal cam, a turret in which a plurality of cam followers are provided radially at predetermined intervals, and an output shaft to which the turret is integrally attached and rotatably supported by the housing. It has a rotary disk attached to the shaft end of the output shaft, and a plurality of blades held at the periphery of the rotary disk, and the predetermined blades are positioned and fixed at the workpiece processing position during machining. In the tool indexing machine of a machine tool, each support part of the turret for fixing the cam follower is made to protrude outward in the radial direction to form a recessed part through which the tip of the tapered rib is inserted between each support part, Between both side wall surfaces of the support portion and both side wall surfaces of the tapered rib, when the cam follower is deformed due to a load acting between the cam follower and the taper rib, the support portion is provided within an elastic deformation region of the deformation. A tool indexing machine for a machine tool, characterized in that a minute gap is provided between the side wall surface of the tapered rib and the side wall surface of the tapered rib.